1. General Introduction
SDV144 Digital Input Module can be installed on Field Control Unit or Safety node unit for 24VDC Voltage Input digital contact signals from field instrument.
2. Standard Specification
Main Characters | Description |
Number of input channels | 16, isolated |
Input signal | No-voltage contact, ON: 1 kΩ maximum, OFF: 100 kΩ minimum |
Input current | 6 mA ± 20% (External power supply, 24 V DC at 0 Ω input) |
Contact rating | 24 V DC +20% / -10%, 10 mA or greater |
External power supply | 24 V DC +20% / -10%, Current capacity: 200 mA |
Instantaneous maximum permissible input voltage | 30.0 V DC |
Input response time | 40 ms maximum |
Withstand voltage | 2 kV AC between input signal and system for 1 minute, 16-input line collectively connected |
Current consumption | 290 mA maximum (5 V DC), 140 mA maximum (24 V DC) |
External connection | Pressure clamp terminal, MIL cable, Dedicated signal cable (AKB331) |
3. Model Selection
Model | Suffix Codes | Description | |||
SDV144 | Digital Input Module (16-channel, 24 V DC, module isolation) | ||||
-S | Standard type | ||||
5 | For pressure clamp terminal block or MIL cable with no explosion protection | ||||
6 | With signal cable interface adapter and no explosion protection | ||||
E | For pressure clamp terminal block or MIL cable with explosion protection | ||||
F | With signal cable interface adapter and explosion protection | ||||
3 | With ISA Standard G3 and temperature (-20 to 70 °C) | ||||
C | With ISA Standard G3 and high-density installation (-20 to 70 ºC) | ||||
Option Code | /B4S00 | With pressure clamp terminal block for digital input (without surge absorber) [Model: STB4S-00] | |||
/B4S10 | With pressure clamp terminal block for digital input (with surge absorber) [Model: STB4S-10] | ||||
/B4D00 | With dual-redundant pressure clamp terminal block for digital input (without surge absorber) [Model: STB4D-00] | ||||
/B4D10 | With dual-redundant pressure clamp terminal block for digital input (with surge absorber) [Model: STB4D-10] | ||||
/PRP | With prevention pin of false insertion | ||||
/CCC01 | With connector cover for MIL cable (for flat ribbon cable) [Model: SCCC01] | ||||
/CCC02 | With connector cover for MIL cable (for discrete wire) [Model: SCCC02] | ||||
4.Typical Order Codes
Typical order codes | Remarks |
SDV144-S53 | With pressure clamp terminal block |
SDV144-S63 | With KS interface adaptor |
5. Field wiring diagnostic functions
If SDV144 field wiring diagnostic functions are used, diagnostic elements SCB100 and SCB110 should be installed for
individual channels in the vicinity of the field equipment:
• SCB100 (for defective open circuit detection while accepting off signals)
• SCB110 (for defective short-circuit detection while accepting on signals)
When the input signals are normally off while in normal operation, connect the SCB100 in parallel with the contact
output of the field equipment; When the input signals are normally on while in normal operation, connect the SCB110 in series with the contact output of the field equipment; When checking for both defective short and open circuits, connect the SCB100 and SCB110 in parallel and series with the contact outputs of the field equipment respectively.
6. External Dimension
